Egbert stewart hyer



. (No Model.)

B. S. HYER. PLOW.

N0..44'7,51'7. Patented Mar. 3, 1891.

' UNITED STATES ATENT FFICE.

ROBERT STElVART. HYER, OF GEORGETOIVN, TEXAS.

PLOW.

SPECIFICATION forming part of Letters Patent No. 447,517, dated March 3, 1891.

Application filed August 18, 1890. Serial No. 862,322. (No model.)

ToaZZ whom it may concern.-

Be it knownthat I, ROBERT STEWART HYER, of Georgetown, in the county of Villiamson and State of Texas, have invented certain new and useful Improvements in Flows; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates o an improvement in plows, and more particularly to means for bracing the mold-board and securing the combined share and point to the mold-board; and it consists, first, in a combined brace, lever, and locking device attached to and supporting the mold-board, and removably secured to the combined share and point at one end and to the landside of the plow at the opposite end.

It further consists in a brace pivoted to the mold-board and provided at one end with a hook or equivalent device for engaginga projection on the under 'side of the combined share and point, and at its opposite end with means for its attachment to the landside of the plow.

It further consists in means for securing the rear end of the brace to the landside of the plow.

In the accompanying drawings, Figure 1 is a view in perspective of a plow embodying my invention. Fig. 2 is a bottom plan View of same. Fig. 3 is a view showing a modified construction, and Figs. 4 and 5 are views in perspective of devices for attaching the rear ends of the brace to the landside.

In the plows in use the mold-boards are usually braced to the landside and the shares removably secured to the plows. In a maj ority of cases the share is secured to the plow by bolts, and in some cases is secured by means of a hook-lever pivoted to the moldboard and engaging a projection on the under side of the share. None, however, so far as I am aware, employ a combined brace for the mold-board and a locking device for the share.

A represents the landside, provided with the forwardly-extending arm B, shaped on its upper edge to receive and support the combined share and point C. This arm Bis provided on its outerface with a lug a, adapted to entera correspondingly-shaped opening in the landside of the part 0 and assist in holding the said part 0 in place. I The upper surface of the part C extends overarm B, and is supported at its upper edge near its outer end by the combined brace and securer D. In Figs. 1 and 2 this brace and securer D is pivoted at e to the moldboard E, and is provided at its forward end witha hook cl, adapted when the share and point C are in position to pass in front of the lug f and lock the share and point to the plow. The movement of the hook cl is away from the lug a on the arm B. Hence it will be seen that with the lug a filling the opening I) and the hook d engaging the lug f the share and point is locked not only against-vertical movement, but also against lateral and endwise movement. The lug f is preferably undercut or provided with a head for preventing the outer upper edge of the part 0 from being lifted. The movement of the lever D necessary to lock part 0 to the plow throws the rear end of lever D over against the inner face of the landside, where it can be locked by various devices. In Fig.1 I have shown the rear end of the lever provided with a dovetail projection 9, adapted to enter under the crank or loop h of the fastening device 2'. This de- Vioet' is journaled on the upper edge of the landside, and by entering the projection g under the crank it andthen turning the device z'until the projection has been engaged by the crank the lever will be locked in position. The locking of the rear end of the lever also locks the share and point C against movement, and in addition thereto forms a firm and substantial brace for the mold-board.

In Fig. 4 the lever D, instead of having a dovetailed projection, as shown in Fig. 1, is provided witha series of teeth g, any one of which can be engaged by the crank g of the locking device. Again, instead of employing the locking device such as shown in Figs. 1 and 4., a simple slide-bolt such as shown in Fig. 5 can be used with good results.

In Fig. 3 I have shown the part G provided with a keeper j, shaped to receive the front end of the brace D. The mold-board E at a point adjacent to the keeper j is provided with two flanges 7a, which latter may be cast integral with the mold-board or be parts of plates secured to the mold-board. Instead of two flanges, as shown, a keeper or half-sleeve similar to the part j on share 0 might be employed. In either case the front end of brace D passes between or through the parts or part carried by the mold-board and into the part j on the share C, and is looked in place by securing its rear end to the landside.

Numerous other details of construction might be devised for accomplishing the same ends. IIenceI would have it understood that I do not confine myself to the exact details herein shown and described, but consider myself at liberty to make such changes and alterations as fairly fall within the spirit and scope of my invention.

side, mold-board, and share, of a lever pivoted to the mold-board and provided with a hook at its front end for engaging a projection on the underside of the share, and means for locking the rear end of the brace directly to the landside, substantially as set forth.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

ROBER" STEWART IIYER.

Witnesses:

S. G. NOTTINGHAM, C. S. DRURY. 

